The actress was spotted walking around the set of her upcoming film Three Generations with chocolate on her face after enjoying a surely delicious chocolate chip cookie.

Whether it's unclear if the sweet mustache was on purpose for the film or just a mishap while snacking between takes, we can't help but notice that she ended up channeling Charlie Chaplin and, um, you know...that other guy that we just won't mention (because eating chocolate chip cookies is meant to be a happy occasion and we don't want to be the buzz kill of this tasty party).

In the film, Watt's plays the mother of Elle Fanning, who is portraying a transgender teen transitioning from female to male. Three Generations, which also stars Susan Sarandon, follows Fanning's transition and Watts' journey to come to terms with having a transgender child.

Although Naomi underwent a tiny makeover for the project by switching up her light locks to a strawberry blond 'do, it was nothing compared to her co-star.

For the complex role, Fanning at one point sported a costume that consisted of baggy black pants and an oversize green jacket with gloves, yellow boots and a striped beanie. She also wore no makeup while filming, and debuted a new dark short hairdo, a far departure from her signature long blond hair.